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Sunken and Pitted Ejecta
The objective of this observation was to examine the edge of impact ejecta from a crater to the north-west of this area (north is up, west is to the left).
Touring a Dusty Region
Dusty regions on Mars are often considered to look boring in HiRISE images because the dust obscures surface features.
A Lonely Mound in Chryse Planitia
A simple proposition: to compare and contrast this pitted mound that is similar in appearance to those in Utopia Planitia, but rarely observed here in Chryse Planitia.
Sedimentary Rocks inside Terby Crater
The sedimentary history of Mars is important to understanding climate change and the evolution of Mars.
Dunes in Meridiani Planum
HiRISE monitors dune fields across Mars to track how they are changing. The mobile sand also cleans dust off of the bedrock in inter-dune areas, providing good views of the bedrock structures and colors.
Old Features and New
This image covers a portion of a typical impact crater in Terra Sirenum at about 40 degrees south latitude on Mars.
The Amazing Spider-Land
This observation features an amazing variety of surface terrain and araneiform structures that we dub “spiders.”
A Flow near Huo Hsing Vallis
The lava appears to overlay sand and sedimentary deposits, so finer scale This image shows a potential outflow channel near Huo Hsing Vallis into an old crater.
River of Sand
A dominant driver of surface processes on Mars today is aeolian (wind) activity. In many cases, sediment from this activity is trapped in low-lying areas, such as craters.
Deposits along the Northern Wall of Melas Chasma
It has been known since the 1970s when the Viking orbiters took pictures of Mars that there are large (i.e., several kilometers-thick) mounds of light-toned deposits within the central portion of Valles Marineris.